Release v4.14.0 (#1496)

Author: alexmojaki

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Release Notes
 
+## [v4.14.0] (2025-10-21)
+
+* Support OpenTelemetry 1.38, fix `instrument_google_genai` and `instrument_langchain` by @alexmojaki in [#1495](https://github.com/pydantic/logfire/pull/1495)
+
 ## [v4.13.2] (2025-10-13)
 
 * Comply with opencode MCP format by @Kludex in [#1488](https://github.com/pydantic/logfire/pull/1488)
@@ -951,3 +955,4 @@ First release from new repo!
 [v4.13.0]: https://github.com/pydantic/logfire/compare/v4.12.0...v4.13.0
 [v4.13.1]: https://github.com/pydantic/logfire/compare/v4.13.0...v4.13.1
 [v4.13.2]: https://github.com/pydantic/logfire/compare/v4.13.1...v4.13.2
+[v4.14.0]: https://github.com/pydantic/logfire/compare/v4.13.2...v4.14.0

logfire-api/logfire_api/_internal/integrations/google_genai.pyi

@@ -1,7 +1,7 @@
 import logfire
 from _typeshed import Incomplete
 from logfire._internal.utils import handle_internal_errors as handle_internal_errors, safe_repr as safe_repr
-from opentelemetry._events import Event, EventLogger, EventLoggerProvider
+from opentelemetry._logs import LogRecord, Logger, LoggerProvider
 from typing import Any
 from typing_extensions import TypeAlias
 
@@ -13,13 +13,13 @@ Part: TypeAlias
 
 def default_json(x: Any) -> str: ...
 
-class SpanEventLogger(EventLogger):
+class SpanEventLogger(Logger):
     @handle_internal_errors
-    def emit(self, event: Event) -> None: ...
+    def emit(self, record: LogRecord) -> None: ...
 
 def transform_part(part: Part) -> Part: ...
 
-class SpanEventLoggerProvider(EventLoggerProvider):
-    def get_event_logger(self, *args: Any, **kwargs: Any) -> SpanEventLogger: ...
+class SpanEventLoggerProvider(LoggerProvider):
+    def get_logger(self, *args: Any, **kwargs: Any) -> SpanEventLogger: ...
 
 def instrument_google_genai(logfire_instance: logfire.Logfire, **kwargs: Any): ...

logfire-api/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "logfire-api"
-version = "4.13.2"
+version = "4.14.0"
 description = "Shim for the Logfire SDK which does nothing unless Logfire is installed"
 authors = [
     { name = "Pydantic Team", email = "[email protected]" },

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "logfire"
-version = "4.13.2"
+version = "4.14.0"
 description = "The best Python observability tool! 🪵🔥"
 requires-python = ">=3.9"
 authors = [